Anyone else ever use a combo of effects, various balance and sound switches and feedback to get cool sounds/noises from the bass? For example, try a chorus pedal and a delay pedal, with a touch of reverb. If you move the bass slowly and carefully to and away from the amp, doppler effect will create a chilling little howl/whine. It sounds straight from a horror movie soundtrack. or worse... I'm just wondering if anyone else experiments with this kind of stuff, and if they have any good findings.